Fat-cutting machine.



C. A. KRABILL.

FAT CUTTING MACHINE.

PPLIOATION FILED JUNE 5, laos.

Patentedl Oct. 20', 1908.

A. KRABILL.

FAT CUTTING MACHINE.

APPLIOATION Hmm JUNE 5, 190s.

Patented Oct. 20, 998.

am wm G. A. KRABILIJ.

FAT CUTTING MACHINE. MPL10-M1011 Hmm JUNE 5, 190s,

Patented 0ct.2o,19o8.

3 BEEETS-SHEET 3.

IIIIIINHI* @Vihwoaao abbonnmd Lis ,UNITED STATES PATENT OFFICE.

FAT-CUTTING MACHINE No. 901,624..vv

To all whom 'it may concern:

. vBe it known that I, CLARENCE A. KRABILL, 'a citizen of the .UnitedStates, residing at Fostoria', in the county of Seneca, State ofy Ohio,have invented certain newand` useful lI.mprovements in Fat CuttingMachines; and l do-hereby declare the following to be a full, clear, andexact description of the i11- vention, such as will enable othersskilled in ythe art to which it appertains to make 4and use the same. v

This invention relates to machines for cutting fat into blocksv prior tothe rendering process, the primary -object of the invention being toprovide a novel form of intermittent feed for the vfat andv a novelconstruction of knife which will. in one movement cut a piece of iatlnto blocks of suitable size for the refining process.

A. further object of the invention resides in the provision of a noveldevice for preventing sticking of the fat to the knives while they areon their upwardstroke, thereby clogging the machine.

With the above and other objects' in view, the present inventionconsists in the construction and arrangement .of parts, shown in theaccompanying drawings, in which:

Figure lis a front elevation of themachine. Fig. 2 is a side elevationof one side thereof. Fig. 3 is a similar view of the opposite side ofthemachine. .Fig 4 is a hori- Zontal sectional view taken directly abovethe knife of the machine. Fig. 5 is a vertical longitudinalv viewthrough the machine, and, Fig. 6 is a detail perspective view of theknife of the machine.

Referring t the drawings, the machine.

comprises a vtable including a top 10 which is' supported by means of lOs 11 which are connected with the top and with the sides 12 and theends 13 of the table. Mounted upon' and extending upwardly fromf the topof the table 10 adjacent its forward end are standards 14. The top 10of,the table is slotted transversely as at 15 for the reception of afeed roll' 16 which is mounted upon a'shaft 17 having its ends extendingslightly beyond the sidesl of the top of the table and the standards 14are provided with alining vertically extending slots 18 in which areengaged the ends of a shaft 19 carryinga second feed roll 20 whichisxlo'cated directly above and in slightly spaced relation -with respectto the roll 16.

upper edge Dlocated in a plane slightly above 'Specification of LettersPatent.

Application filed June 5, 1906. Serial N o. 320,359.

The roll16 has its.

ratented ont. 2o, 1eo8.

the upper face of the table and as will ferent thicknesses of fatbetween the rolls i 16 and20. 1n order to maintain a tension' upon theroll 20 to normally hold vit at its limit of movement toward the roll16, I pio fvide a pair 4of 'bell-crank levers 22 which` `are pivoted oneto each of the standards 1a and which have one of their arms bifur catedas at 23 to'receive the outer end' of the shaft 19, there being springs24 connecting the outer ends of the bell crank levers tothe sides 12 ofthe table. In order to hold the roll 16 at a tension to preventl itsturningr too rapidly, I provide a block725 which is secured to theunderside of the top 10 'of the tableand against which bears-one end ofa brakemember 26, the forwardmend of the brake-member being preferablyyof vless thickness than the rear end thereof in order lthat it may havesome resiliencyland the said brake member being held in proper positionwith the rearend bearing against the blocli' as stated and its forwardend against the underside of the', roll 16 by means of al thumb-screw 27which is engaged through the said brake-member intermediate .its ends.and into the table top 10. p, y

Mounted in suitable brackets28. upon the standard 14 is a shaft 29 whichisprovided.4

at one of its-ends with a {1y-wheel 30y and also with eccentric disks31'and 32which are located outwardly of the standard 14 and with whichare'engaged by eccentric straps 33'and 34 respectively including each anarm 35 which is arranged at its lower end forengagement with ratchetwheels 3 6 and 37, Vthe arm carried by the strap.l 33 being disposed forengagement with the wheel 36 and the arm carried by the strap 34 withthe arm? 37, The `ratchet wheels 36 and 37- are secured upon the shafts17 and 19 respectively and outwardly `of the standards 14 as will bereadily understood and are arranged" to intermittently rotate thesaidshafts and-their respective-feed rolls a predetermineddis-` tancewhen the shaft 29 is rotated.' 'As 'shown in the'drawings, the endsofthearms 35 engagethe ratchet wheels relatively upon opposite sides sothat the said feed rolls will be turned in opposite directions as willbe readily understood. A spring 38 is conf.

nected atvone of its ends to the arm 35 carj ried by the eccentric strap33 and at its opposite end to the adjacent standard, the pur- .pose ofthe spring being 'to hold the said arm in proper engagement withitsrespective vratchet wheel 36, the said arm being also held inthisposition by means of a spring `inger 39 secured to the adjacent side ofthe top of the table and extending upwardly and rearwardly and bearingagainst the forward face of the arm 35. Extending laterally 'from theadjacent standards is a rod 40 whichjhas its outer end portion bent for-'Wardlyat right angles as at 41 toV prevent lateral movement'of the saidarm 35- and '15 hence disengaging from the ratchet wheel 36 the rolls 16and 20 are intermittently rotated.v A similar guide member 42 isprovided for the arm carriedby the eccentric strap 34 and has a,rearwardly extending portion 43 which holds the said' last-named armagainst lateral movement as in the case ofthe member 40. Secured to theside of the adjacent standard 14 is one end of a leaf spring 44 whichhas its opposite end arranged to bear againstpthe rear face of the saidarm as indicated at 45 to hold it in its proper-position. In order thatthe shaft 29 may be rotated, I provide upon the said shaft at its endopposite the fly-wheel 30, a

l pinion 46 and journaled upon the adjacent standard, a gear vwheel 47which is provided with a crank-handle 47 by means of which `4thegear-wheel may be rotated, it being un- 'derstood that it meshes withthe pinion 46. 353;' Secured to each of the standards 14 at vtheirforward ed es are guides 48 in which is mounted to s ide vertically aplate 49 .which plate is provided at its upper edge fand at each sidewith a pintle 50 formed by recessing the said plate adjacent its Iupperend. Mounted upon the shaft 29 are eccentrics 51 with which are engagedby eccentric nstraps 52 from which lead arms 53, the said arms beingprovided at their lower ends with openings through which are engaged thesaid pintles 50.

.A knife plate 54 is provided with slots 55 ,at intervals throughout'itslength through which are engaged set-screws 56 which have their endsengaged. in the plate 49, the said knife plate 54 being thusadjustablymounted upon the plate 49. The lower edge fr of the knife plate 54 issharpened to form a cutting edge'as shown in the drawings, and A itVwill beunderstood serves tofcut the fat transversely as it is fedbeneath the same. "Inorder to cut the fat longitudinally and in toblocks, I provide the three sided knife blades l5'7 which include each aconnecting portion and spaced portions 58 which extend' atright anglesto theportion 57 and in' spaced relation to each other, the lower edgesofthe spaced portions being sharpened to form a cutting ledge while thelower edge of the connecting portion is located -in a plane above thelsaid lower'4 edges of the spaced portions 58 as indicated at 59. The

4through each slot as will be readily understood.` From the foregoinglit 4will'be seenl that the main knife blade 54 which cutsthe fattransversely and the blades 57 whichA cut j it longitudinally areadjustable vertically to allow for wear and to accommodate the machineto various circumstances. In order 'to prevent the blocks of fatl fromsticking yto the blades 57, I mount upon the top of l the; table 4and inspaced-relation thereto, a bar 63 from which extend rearwardly fingers62, the said lingers being arranged to' lie one between each of theblades 58 and one at -said blades are secured adjustably up'on the eachend of the series of blades, the said fingers serving to hold the fatagainst upward movement with the plate 49 and its blade as will bereadily understood. .A

It will be noted that the eccentrics 31, 32

removed upwardly, the arms 35 willbe on their down stroke to actuate thefeed rolls,

yit being understood that the said feed rolls In a machine. of the'class' described, a

table, any intermittently actuated feeding mechanism comprising an upperand a lower i roll, a ratchet wheel'on one end of each roll,

said ratchet wheels having oppositely di'- `rected teeth, a rotatableshaft parallel to said rolls, a pair of eccentries spaced apart uponsaid shaft, spring pressed pawl arms arranged to be operated by saideccentric's and respectively engaging said ratchet wheels, areciprocating cutter, a second pair of eccentrics mounted upon saidshaft, and operating means connected between said second pair ofeccentrics andhsaid reciprocating cutter.

In testimony whereof, I aiiix my signature, in presence of-twowitnesses.

CLARENCE A. KRABILL.

Vitnesses HIRAM KRABILL, CURTIS GUERNSEY.

land 51 are so positioned upon the shaft 29 that when the plate 49 andits blade is being

